Primary smelting with multipolar cell
5
Technology Description
While conventional Hall-Héroult cells used for aluminium electrolysis have a single-pole arrangement, multipolar cells could be produced by using bipolar electrodes or having multiple anode-cathode pairs in the same cell. They have lower operating temperatures and higher current densities, potentially reducing energy consumption by 40%. Their formulate requires pairing with inert anodes.
Relevance for Net Zero
The technology can help reduce electricity needs, thus helping reduce pressure on the power system. However, it requires inert anodes to function, and its impact on emissions would be in terms of indirect electricity emissions (which should be decarbonising in parallel).
Key Countries
United States
Have a solution for
this technology?
List your innovation on the InCarbZero platform and increase your visibility to industry partners.